US3591263A - Protective glasses - Google Patents

Protective glasses Download PDF

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Publication number
US3591263A
US3591263A US3562A US3591263DA US3591263A US 3591263 A US3591263 A US 3591263A US 3562 A US3562 A US 3562A US 3591263D A US3591263D A US 3591263DA US 3591263 A US3591263 A US 3591263A
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US
United States
Prior art keywords
lenses
spectacles
protective
tint
orange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US3562A
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English (en)
Inventor
Kurt Esterson
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3591263A publication Critical patent/US3591263A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/105—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having inhomogeneously distributed colouring

Definitions

  • PROTECTIVE GLASSES This is a continuation application of application Ser. No. 577,859, filed Sept. 8, 1966, and now abandoned.
  • This invention generally relates to spectacles and is particularly directed to glare reducing protective spectacles or glasses.
  • snow glasses or spectacles wherein the lenses have a relatively light, preferably yellowish, tint. While, of course, spectacles fitted with snow lenses do not filter out the light to the same extend as lenses of dark tint or color, such snow spectacles are not very efficient in respect to very strong light sources and do not permit glare-free viewing in strong sun light.
  • the three basic characteristics of viewing have to be enhanced, to wit, the capability of the eye to perceive and distinguish contrast, the capability and sensitivity of the eye to perceive and distinguish form and the response time of the eye to perceive images, also referred to as the perception speed.
  • the capability to perceive or distinguish contrasts makes it possible for the eye to perceive differences in the light density or brightness, to wit, contrasts.
  • the capability to recognize form, to wit, the visual acuity increases with the contrast of the objects viewed and also with the luminous intensity or brightness.
  • the response time or speed of perception is the capability of the eye to perceive rapidly changing images.
  • This characteristic of the eye also increases with the contrast and with the luminous intensity or brightness of the respective objects. Since the luminous intensity or the brightness generally cannot be influenced by the viewer, for example, in street traffic almost never, the main purpose of protective spectacles is to help the eye of the observer in the perception of difierences in the brightness, to wit, of contrasts.
  • Another object of the invention is to provide protective spectacles of the indicated kind which avoid a reduction in the visual acuity of the viewer caused by artificial light sources.
  • glare reduc ing protective spectacles are fitted with lenses, one of which has a reddish or orange tint while the other lens is of yellow color.
  • the lenses may, of course, be imparted with the respective colors or tints, or transparent filter lenses of the indicated colors may be placed in front of ordinary uncolored lenses,
  • inventive spectacles are also suitable for use in bon! plants and for operations, such as welding and the like, in which protective glasses generally are used.
  • inventive protective spectacles as compared to the prior art constructions, have the advantage that they protect the eye against any kind of glare, but on the other hand do not darken excessively so that viewing without strain is rendered possible for an extended period of time.
  • Experiments have indicated that for industrial purposes the best results are obtained if one of the lenses has a reddish tint while the other one is dark yellow.
  • the filter lenses are arranged in the protective spectacles.
  • the darker filter may optionally be the righthand or left-hand lens.
  • the filter disc of lighter tint or color be associated with the eye of lesser viewing efficiency.
  • the single figure of the drawing is a perspective view of a pair of spectacles.
  • reference numeral 10 indicates spectacles comprising an ordinary spectacle frame 1.
  • One of the lenses, to wit, 2 has a reddish or orange tint while the other lens 3 is yellow.
  • an ordinary pair of spectacles can be used in conjunction with transparent filter discs of the indicated colors which are placed in front of the lenses.
  • the improvement which comprises that the entire surface of one of the lenses has an orange to reddish tint whereas the entire surface of the other lens has a yellow tint.

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Telescopes (AREA)
US3562A 1965-10-01 1970-01-08 Protective glasses Expired - Lifetime US3591263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE30189A DE1224534B (de) 1965-10-01 1965-10-01 Schutzbrille

Publications (1)

Publication Number Publication Date
US3591263A true US3591263A (en) 1971-07-06

Family

ID=7074345

Family Applications (1)

Application Number Title Priority Date Filing Date
US3562A Expired - Lifetime US3591263A (en) 1965-10-01 1970-01-08 Protective glasses

Country Status (4)

Country Link
US (1) US3591263A (en))
DE (1) DE1224534B (en))
GB (1) GB1141252A (en))
SE (1) SE344641B (en))

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602856A (en) * 1984-02-13 1986-07-29 Marks Mortimer M Combined photopic and scotopic viewers for two-dimensional moving image displays
US4758079A (en) * 1986-11-10 1988-07-19 Wanda Bledsoe Eye shield for blocking ultraviolet rays
USD309618S (en) 1988-01-04 1990-07-31 Tony Evans Eyeglasses
EP0519660A1 (en) * 1991-06-19 1992-12-23 Raphael L. Levien Eyeglass with spectral color shift
US5363151A (en) * 1991-10-03 1994-11-08 Biays Alice De P T Color correction for improved vision through water and other environments
US5408278A (en) * 1990-11-23 1995-04-18 Christman; Ernest H. Method and device for enhancing visual and color perception
USRE38402E1 (en) 1982-02-26 2004-01-27 Suntiger, Inc. Optical lenses with selective transmissivity functions
USD557326S1 (en) * 2006-07-14 2007-12-11 Oakley, Inc. Eyeglass components

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8709836D0 (en) * 1987-04-25 1987-05-28 Barr & Stroud Ltd Optical apparatus
DE3742025A1 (de) * 1987-12-11 1989-06-22 Horst Kuropka Kfz-nachtbrille, aus glas und kunststoffglaeser in der einfaerbungsfarbe gelb (gelb in allen schattierungen und toenungen), entspiegelt
DE3837884A1 (de) * 1988-11-08 1990-05-10 Mutzhas Maximilian F Lichtfilter zur verbesserung des sehens
ES2298089B2 (es) * 2007-07-19 2010-03-08 Universidad Complutense De Madrid Visor de casco de seguridad y prevencion con superficie tratada para la proteccion y terapia de ojos.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1422527A (en) * 1920-01-20 1922-07-11 Frederick L Sawyer Color print viewable by lights of different colors and process of making the same
GB403067A (en) * 1932-03-10 1933-12-14 Charles Pissard Goggles adapted for protection against blinding light
GB538830A (en) * 1940-01-11 1941-08-19 John Alexander Fleming Improvements in protective spectacles
US2421609A (en) * 1944-02-22 1947-06-03 Louis P Good Third-dimensional pictures and third-dimensional portrayal of anatomy and surgery
GB706196A (en) * 1951-03-09 1954-03-24 Herbert Richard Steward Improvements in or relating to anti-dazzle devices
FR1134943A (fr) * 1955-10-25 1957-04-19 Lunettes de protection contre l'éblouissement par les phares
US3221599A (en) * 1960-05-27 1965-12-07 Polaroid Corp Method for producing and viewing multicolored stereoscopic images

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1422527A (en) * 1920-01-20 1922-07-11 Frederick L Sawyer Color print viewable by lights of different colors and process of making the same
GB403067A (en) * 1932-03-10 1933-12-14 Charles Pissard Goggles adapted for protection against blinding light
GB538830A (en) * 1940-01-11 1941-08-19 John Alexander Fleming Improvements in protective spectacles
US2421609A (en) * 1944-02-22 1947-06-03 Louis P Good Third-dimensional pictures and third-dimensional portrayal of anatomy and surgery
GB706196A (en) * 1951-03-09 1954-03-24 Herbert Richard Steward Improvements in or relating to anti-dazzle devices
FR1134943A (fr) * 1955-10-25 1957-04-19 Lunettes de protection contre l'éblouissement par les phares
US3221599A (en) * 1960-05-27 1965-12-07 Polaroid Corp Method for producing and viewing multicolored stereoscopic images

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE38402E1 (en) 1982-02-26 2004-01-27 Suntiger, Inc. Optical lenses with selective transmissivity functions
US4602856A (en) * 1984-02-13 1986-07-29 Marks Mortimer M Combined photopic and scotopic viewers for two-dimensional moving image displays
US4758079A (en) * 1986-11-10 1988-07-19 Wanda Bledsoe Eye shield for blocking ultraviolet rays
USD309618S (en) 1988-01-04 1990-07-31 Tony Evans Eyeglasses
US5408278A (en) * 1990-11-23 1995-04-18 Christman; Ernest H. Method and device for enhancing visual and color perception
EP0519660A1 (en) * 1991-06-19 1992-12-23 Raphael L. Levien Eyeglass with spectral color shift
US5218386A (en) * 1991-06-19 1993-06-08 Levien Raphael L Eyeglasses with spectral color shift
US5363151A (en) * 1991-10-03 1994-11-08 Biays Alice De P T Color correction for improved vision through water and other environments
USD557326S1 (en) * 2006-07-14 2007-12-11 Oakley, Inc. Eyeglass components
USD557325S1 (en) * 2006-07-14 2007-12-11 Oakley, Inc. Eyeglass front

Also Published As

Publication number Publication date
SE344641B (en)) 1972-04-24
GB1141252A (en) 1969-01-29
DE1224534B (de) 1966-09-08

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